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Object-oriented Programming in C#
Operators, Delegates, and Events
Some details of operator overloading

Additional details about operator overloading. Not the full story, however.

public static return-type operator symbol(formal-par-list){

The C# syntax for definition of an overloaded operator.

  • Operators must be public and static

  • One or two formal parameters must occur, corresponding to unary and binary operators

  • At least one of the parameters must be of the type to which the operator belongs

  • Only value parameters apply

  • Some operators must be defined in pairs (either none or both):

    • ==   and   !=            <   and   >            <=   and   >=

  • The special unary boolean operators true and false define when an object is playing the role as true or false in relation to the conditional logical operators

  • Overloading the binary operator op causes automatic overloading of the assignment operator op=

The list of rules above is not exhaustive